Granted Patent
Utility
US 5,763,675 · App. 08/578,658
Process for the preparation of 2-hydroxyarylaldehydes under reduced pressure
Inventor:
Daniel Levin
Patented Case
View Patent ↗
Granted: Jun 9, 1998
Filed: Jan 5, 1996
Inventor
Daniel Levin
Assignee (at issue)
Zeneca Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.